<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>{{  .title  }}</title>
</head>
<body>
    <H1>index! - {{  .title  }} </H1>

    <a href="/down" download="文件路径">11111111111111</a>
</body>
</html>